Right Grouping (used so far) vs.
Left Grouping Productions
Syntax Tree
A ¨ V + A | V
V ¨ a | b | c
A
V + A
V + A
a
V
b
c
Right-grouping production
Derivation
Tree
+
a
c
b
+
Syntax Tree
A ¨ A + V | V
V ¨ a | b | c
A
A + V
A + V
c
V
b
a
Left-grouping production
Derivation
Tree
+
a
c
b
+